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This study describes a possibility of an improvement of cooling performance of electrical components by using an intermittent jet flow like a geyser in nature. In this report, a relationship between cooling performance of intermittent jet on the heating surface and the nozzle diameter was investigated through the experiment. Through the experiment, it was found that the level of the improvement of...
This paper describes the details of pressure drop characteristics around axial cooling fans mounted in high-density packaging electronic equipment in order to improve prediction accuracy of supply flow rate of the fans in thermal design. Forced air convection cooling driven by cooling fans is the commonest strategy for dissipating heat from electrical devices. Cooling performance of the fans is mainly...
This paper describes an improved measurement method for fast evaluation of thermophysical properties of an insulation sheet. The sheet is used to insulate inverter and water cooling jacket in an electric or hybrid electric vehicles. A large number of iterations of steady state measurement is required to perform parameter study for various composition of the sheet. However, steady state measurement...
This study has been conducted by aiming at acquisition of benchmark test data for CFD simulations for thin electronic equipment. Flow in the model of a thin electronic equipment was measured using a PIV. Dummy components were placed in the model and those configurations were altered. The temperature rise of a heat source in the model was also measured and the cooling performance was examined. PIV...
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